Complex I

Q. What is the role of NA$D^{}$⁺ in cellular respiration?

1. It is a nucleotide source for ATP synthesis
2. It functions as a electron carrier
3. It functions as an enzyme
4. It is the final electron acceptor for anaerobic respiration

Q. The first ATP is formed in the electron transport chain when hydrogen passes from

1. FMN to CoQ
2. NAD to CoQ
   
3. NAD to FMN
4. FMN to FAD
   

Q. Which among the following is an inhibitor of complex I of ETC?

1. Antimycin A
2. Carbon monoxide
3. Rotenone
4. Carboxin

Q.

Why does the electron transport chain stop without oxygen?

Q.

What does the electron transport chain produce?

Q. FMN is component of

1. complex I
2. complex II
3. complex III
4. complex IV

Q.

What is the coupling effect seen in the process of NADP reduction?

Q. Which component of ETC transfers four protons?

1. Complex I
2. Complex II
3. Complex III
4. Complex IV